Agent Skills: designing-interaction-states

Designs the states screens actually spend their time in — first-run and empty states, loading and skeletons, inline validation and error messages, success feedback, destructive confirmations, and the microcopy for each — so a product feels finished instead of only working on the happy path. Use when building a form, list, dashboard, upload, checkout or settings screen, adding an async action, writing error or empty-state copy, or reviewing a UI that shows blank pages, raw errors or spinners forever.